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Radiant|Lab Grown|IGI

0.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG743509083

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG743509083

Diamond specifications and retailer prices

From £98 GBP
As of November 4, 2026
Save £914 GBP (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,012 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743509083 or 743509083. Listed at 19 retailers as of November 2, 2026, with prices from £98 to £1,012, a £914 spread on the same certified stone. MOH London lists it at £1,012. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743509083
Dimensions3.95 × 5.71 × 2.65 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
3.95 mm5.71 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743509083
Side View
Table 66.0%Crown 42.8°Girdle: Slightly ThickPavilion 34°Culet: NoneDepth 67.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,012 GBP|Low: £93 GBP|High: £1,024 GBP|Avg: £309 GBP|+0.7%
MOH London
Retailer 2
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November 4, 2026
Retailer 16£98 GBP
Retailer 3£113 GBP
Retailer 17£121 GBP
Retailer 19£121 GBP
Retailer 12£127 GBP
Retailer 7£170 GBP
Retailer 2£202 GBP
Retailer 15£218 GBP
Retailer 14£220 GBP
Retailer 8£236 GBP
Retailer 5£249 GBP
Retailer 13£308 GBP
Retailer 9£344 GBP
Retailer 6£385 GBP
Retailer 18£390 GBP
Retailer 4£412 GBP
Retailer 10£431 GBP
Retailer 11£723 GBP
MOH London£1,012 GBP

35 data points across 19 retailers

19 retailers£98 GBP to £1,012 GBP

A
Cheapest Retailer
-
£98 GBP
A
Retailer 2
-
£113 GBP
View
A
Retailer 3
-
£121 GBP
View
Retailer 4
-
£121 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£127 GBP
View
Final sale: no returns
A
Retailer 6
-
£170 GBP
View
A
Retailer 7
-
£202 GBP
View
A
Retailer 8
-
£218 GBP
View
A
Retailer 9
-
£220 GBP
View
A
Retailer 10
-
£236 GBP
View
B+
Retailer 11
-
£249 GBP
View
B+
Retailer 12
-
£308 GBP
View
B+
Retailer 13
-
£344 GBP
View
B+
Retailer 14
-
£385 GBP
View
B+
Retailer 15
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£390 GBP
View
B
Retailer 16
-
£412 GBP
View
B
Retailer 17
-
£431 GBP
View
B
Retailer 18
-
£723 GBP
View
Most Expensive
B
MOH London
LG743509083 · Nov 2
£1,012 GBP
View
18 more retailers have this diamond
Prices start from £98 GBPSave up to £914 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Radiant
£98 GBP